Actor Adrian Grenier sends a special holiday greeting to his Facebook fans. Singer Beyoncé debuts her new music video. Miami Heat players pose with singer Justin Timberlake during a tour stop, and a former U.S. Secretary of State opens up about the late Nelson Mandela during a Facebook Q&A. Musicians, actors, athletes and other public figures are joining the conversation on Facebook. Check back here each week for a few standout posts.

Actor Adrian Grenier getting into the spirit with this new profile picture.

Singer Beyoncé announcing her new album exclusively on Facebook.

Actor Tyler Perry takes snapping this photo of ‘Tonight Show’ host Jay Leno dressed as Madea.

Dwyane Wade posing with singer Justin Timberlake and Miami Heat teammates Mario Chalmers and LeBron James.

Professional skateboarder Tony Hawk sharing this “Throwback Thursday” post from his youth.

Former U.S. Secretary of State Madeleine Albright chatting with fans on Facebook about technology, the late Nelson Mandela and her brooch.

Actor Kevin Spacey showing up for practice with professional tennis player Andy Murray.

Actor Vin Diesel sharing this emotional post after the death of his friend and ‘Fast & Furious‘ co-star, Paul Walker.

Los Angeles Lakers guard Kobe Bryant announcing his season debut with this “Seasons of Legend” video.

Singer Christina Milian showing off her leopard print shoes en route to Miami.

‘Desperate Housewives‘ star Eva Longoria posting photos from her trip to Dubai.

Chelsea Football Club thanking its 20 million Facebook fans with this special highlights video.

By Alex Walker, Consumer Content Manager and Bree Nguyen, Partnerships Manager